Formation of (4 4 11) [11 11 8] orientation in aluminum alloy rolled just below recrystallization temperature

• Published in: Journal of Japan Institute of Light Metals Vol. 34; no. 9; pp. 505 - 510
• Main Authors: KAMIJO, Taichi, FUKUTOMI, Hiroshi, NAKANOUCHI, Yukio
• Format: Journal Article
• Language: Japanese; English
• Published: The Japan Institute of Light Metals 1984
• ISSN: 0451-5994; 1880-8018
• DOI: 10.2464/jilm.34.505

Aluminum alloy sheets containing 0.26 mass%Zr were rolled up to 96% at 400°C just below the recrystallization temperature to examine formation of the (44 11) [11 11 8] component. (111) pole figure of an alloy sheet rolled to 96% at room temperature is quite similar to that of a heavily rolled pure aluminum sheet. (111) pole figure of a sheet rolled 84% at 400°C consists of the (44 11) [11 11 8] orientation and that rolled 96% is rather well accounted for by the orientation spread from (44 11) [11 11 8] to (011) [211] than that from (112) [111] to (011) [211]. Assuming that the resolved shear stresses in operating slip systems at stable orientations are equal to each other and highest, the compressive stress axis in the (44 11) [11 11 8] oriented grains might incline 8° from the rolling plane normal. The inclination of the stress axis at warm rolling is attributed to the constraints due to macroscopically the force acting between rolls and sheets.